**7. Conclusions**

Numerous fields require access to seafloor topography and geomorphology. The onboard deep-sea multi-beam sounding system should be used to map the area and obtain a relatively accurate topographic map of the seabed to provide basic terrain data. Although a shipborne deep-sea multibeam sounding system can detect a wide range of deep seabed terrains, its detection accuracy is limited, and it cannot search for small objects on the seafloor.

Near-seafloor micro-topographical mapping is a significant supplement to full sea depth topographical detection. It combines micro-topographical mapping

**45**

**Author details**

provided the original work is properly cited.

Tongwei Zhang1,2,3\*, Baohua Liu1,2 and Xiaodong Liu4

1 National Deep Sea Center, Qingdao, China

and Technology, Qingdao, China

Sciences, Beijing, China

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

2 Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science

4 Ocean Acoustic Technology Center, Institute of Acoustics, Chinese Academy of

3 Joint Laboratory for Ocean Observation and Detection, Qingdao National

Laboratory for Marine Science and Technology, Qingdao, China

\*Address all correspondence to: tongwei.zhang@outlook.com

*Advanced Mapping of the Seafloor Using Sea Vehicle Mounted Sounding Technologies*

sonars with underwater vehicles and can dive to near-seafloor to achieve accurate topographical detection. DT and AUV are more suitable for large-area microtopographical mapping survey owing to their good streamline and control stability. However, although the mapping and detection results are affected by other factors, ROV and HOV are still needed for small-site micro-topographical mapping. BSSS

This work was supported in part by the Qingdao National Laboratory for Marine Science and Technology under Grant QNLM2016ORP0406, Taishan Scholar Project Funding under Grant TSPD20161007, National Natural Science Foundation of China under Grant 41641049, National Key R&D Program of China under Grant 2017YFC0305700, Shandong Provincial Natural Science Foundation under Grant ZR2015EM005, Shandong Provincial Key R&D Program under Grant 2016GSF115006,

and Qingdao Independent Innovation Project under Grant 15-9-1-90-JCH.

The authors declare that they have no conflict of interest.

*DOI: http://dx.doi.org/10.5772/intechopen.83448*

and MBE can be mounted on ROV and HOV.

**Acknowledgements**

**Conflict of interest**

*Advanced Mapping of the Seafloor Using Sea Vehicle Mounted Sounding Technologies DOI: http://dx.doi.org/10.5772/intechopen.83448*

sonars with underwater vehicles and can dive to near-seafloor to achieve accurate topographical detection. DT and AUV are more suitable for large-area microtopographical mapping survey owing to their good streamline and control stability. However, although the mapping and detection results are affected by other factors, ROV and HOV are still needed for small-site micro-topographical mapping. BSSS and MBE can be mounted on ROV and HOV.
